Filling-cutting device for shifting-shuttle-box looms



Nov. 19, 1929. F. COTE 1,736,488

FILLING CUTTING DEVICE FOR SHIFTING SHUTTLE BOX LOOMS Filed Jan. 11, 1929 2 Sheets-Sheet 1 INVENTOR.

A TTORNE Y.

Nov. 19,1929. F. COTE FILLING CUTTING DEVICE FOR SHIFTING SHUTTLE BOX LOOMS Filed Jan. 1929 2 Sheets-Sheet 2 30 INVENTOR.

A TTORNE Y.

Patented Nov. 19, 1929 raancors corn, or :omlcu'r, MASSACHUSETTS rmnnro-cuzr'rme DEVICE Ion sfimrmG-snurrLE-mx Looms Application ma January it, 1929. Serial m. aaaa'ss.

This invention relatesto the type of weav- .ing looms known as the shifting shuttle box type.

There are various cutting temples-which;

go on the battery or bobbin shifting side of looms, but this goes on the o posite or box side where the shuttles themselves are changed by suitable mechanism.

When weaving stripes or other designs I 1 where shuttles with different colors or sizes of yarn are changed,the end of the thread from the dead or inactive shuttle extends from the box to the selvage of cloth and when that shuttle is again brought into action,-a

16 loop is formed, the length of which depends on'the width of the stripes or other design.-

These loops of filling must be removed in some way from theselva e to make the fabric salable. They are orfinarily removed by operators who cut them off byhand or they may be removed by singeing. Both of these operations are slow and expensive.

This invention provides automatic means by which very soon after a'shuttle has been chan ed or become dead,the trailin thread whic extends therefrom to the se vage is grabbed by claws and seized by a-cutting hook separated by a suitable guide from the selvage so that the selvage willnot be cut and this cutting hook cuts the thread very close to the selvage. In the meantime, and

before and after, claws continue to act with the result that the cut end is positively carried along into the mouth of jaws, one of which is J spring actuated, and such jaws hold this end sufliciently so that when the shuttle is again brought into action, it will not carry the cut end through the warp, but that end will be held during the first. pick, after which the thread from that shuttle is locked in the warp.

The tail or end left in the jaws and between it and the selvage is verymuch shorter than would be the case where a wide stripe or other similar design was being woven, without my device and this comparatively short end is grabbed and cut after a few additional picks of the loom.

In the drawin 1 is a plan view of a loom temple wit its stand positioned on the guide.

shuttle box side of a loom and also showing partrof the breast beam.

Fig. 2 is an elevation of the temple head with my device attached shown as somewhat enlarged and viewed from the front. 5

5 Fig. 31s a very much enlarged detail plan .v ew of the cutting members and selvage Fig. 4 is a sectional view from the left of the line 44 on Fig. 3. I

' Fig. 5 is-an elevation as from the left of Fig. 1.

V Fig. 6 is a diagrammatic enlarged and distorted plan. view showing the selvage of'the cloth andv the manner in which the various shuttle threads are cut.

Fig. 7 is an elevation as from the right of 1 but showing the lay beam in the pos1t1on in which 'it is beaten up.

Fig. 8 is an enlarged plan view similar to Fig. 3 showing a modified form of cutting mechanism and selvage guard.

Fig. 9 is an elevation similar to Fig. 5 showing the device which I may use in place of the claw or in combination with it.

The drawings represent the box side of a shifting shuttle loom having a breast beam 20 and a lay beam 21 which carries the usual reed 121.

2 2 is a temple stand of a well-known type ad ustably fixed on the'box side of the breast beam as by means of screws 23 which pass through a slot 123. 24 represents a temple shank slidable in the stand and normally kept out towards the lay beam as by means of a spring 29.

This stand 24 carries a temple head 26 in which is revoluble a spiked temple roller 27. 30 is what is known as a heel or a downwardly projecting member 30 fixed to the shank in position to engage a part of the lay beam 21 known as the spade 221 on the up beat of the la "beam. Close to the end 28 of temple rol er 27 of the temple head, I locate a selvage guard C shown exaggerated in Fig. 3. As shown, this is in the form of a curve or half circle to direct the selvage edge 1 of cloth A away from the cutting members F and H. The cutting member F as shown is part of the'same piece of metal as C being really a slot throughwhich the from stand 22 and is shown as being adjustable in the'stand by means of the adjusting blocks 55, 55 and screws 56.

The real cutting edge of F is 140 and of H. is 150.

K is a claw member pivoted outside the temple head but as close as possible to the temple head cutting member F and preferably consists of two thin metal plates and 61 each having teeth as 62 which are formedin such relation to the pivot 63 that when the 'claw member turns on its pivot they will enter slots 161 and 162 formed in an extension 70 of the temple head which also serves as the lower jaw of thread holding device L.

The claw member K has a tail 64 to which 65 is pivoted the actuating rod 66 which ex tends back and passes through a hole 67 in an car 68 fixed to temple stand 22;

Preferably this actuating rod is provided with compression springs 164 and 165 on each side of ear 68 which bear against the adjusting collars 166 and 167, having adj usting screws 168 and 169.

hen the temple shank and head are forced back by the up movement of the lay beam, the teeth of this claw member are so moved that they will catch any thread which extends from the selvage edge 1 of the cloth into the shuttle box and will continue to paw it in towards the mouth of the thread holding device L which I will now describe.

This thread holding device L includes a lower jaw 70 attached to the side of the temple head as described'and this lower jaw 70 preferably has a lip 71 which curves down and forward the more easily to receive the thread.

The upper jaw 7 2 is preferably divided at the front into two up turned ends 73 and 71 between which the two members of the claw K turn and extends therefrom closely down fixed by means of a bolt 77 to an arm 78 which extends out from shank 24.

The thread is pawed into the mouth of thread holding device L by claw member K' where goods are being made with widely separated filling stripes, the cut end remains in the thread holder being very slowly pushed back as the shuttles are shifted, whereby when the dead shuttle moves back into the cloth, instead of along loop,"there is a very short loop and this-loop is very soon cut off.

The result is that as shown in Fi 6 short loops such as Y are being slowly discharged at the back end of the holderL on to the floor, but there is very little waste.

Referring to Fig. 6, A represents a cloth in which there are three cross or filling 1stripes W, R and B with a warp indicated As shown, there is a narrow stripe B and a number of comparatively wider stripes andR.

The thread 5 of color B has been cut at 10 and since that time the short loops of the W threads 13, 14 and R thread loops 11 and 17 have also been cut off and there is a IV thread 6 extending also into the shuttle boxwhile the R thread 9 from the live shuttle has been cut at 19 but this thread is now being woven into warp 8.

In Fig. 8 instead of combining temple head cutting member and the selvage guard, as in Fig. 3, I show a selvage guard 340 for selvage 1 of cloth Aecomprising a curved strip of metal. The temple head cuttin member 341 has a sharp beveled forward e ge, while one side 343forms a guide with the round guide 342 through which the temple stand cutting member 350 moves.

This temple stand cuttin member 350 is of hook form and has a beve ed cutting edge 351 which co-operates with 3&1 to make a clean cut of any filling such as indicated at 2.

In Fig. 9 I show a thread guide 90 which consists of a strip of sheet metal fastened at 91 to the lay beam 21 and extending toward the breast beam in such position that it will pass up along the outside of thread holding device L every time the lay beats up.

It has a recess 92 which at the back may have an upright arm, and at the front has a member which slopes up and back at 93 and is cutaway at a slant at "94 whereby the trailing end of thread from the shuttle will slip up and over into the recess 92 and will be guided therein as the lay heats up and back until caught and held by the thread holding device L and, if one is used, by the claw K.

I may use this member to carry the thread into the thread holding device with the claw or in place of it, or I may omit both members to carry the thread into the thread holding device.

too

. a breast beam and a lay beam; the combinathe selvage into the shuttle box back a little,

farther at each pick until it is received into the jaws of the thread holding device L and until it is cut by the cutting members.

Therefore, while I prefer to use the claw K or device shown in Fig. 9, they are notessential in all cases.

I claim:

1. In a shifting shuttle box loom having a breast beam and a lay beam; the combination with a temple stand fixed to the box side of the breast beam, a shank slidable therein, a spiked temple roller revolubly carried and a temple head carried by theshank, a returning spring for the temple shank, and a heel fixed to the shank in position to engage the lay beam on the up beat; of a selvage guard attached to the temple head proximate the selvage end of the temple roller; a temple head cutting member fixed to the temple head outside the selvage guard; a hook shaped temple stand cutting member connected to the temple stand and in cutting relation with the temple head cutting member; a thread holding device having a mouth which is open towards the lay to receive the thread and is formed by the ends of two jaws spring pressed together to hold the thread between the selvage and a dead shuttle in the box, said thread holding device being also open at the back; and a claw member pivoted to the temple head outside the cutting members and connected to the temple stand.

2. In a shifting shuttle box loom having tion with a temple stand fixed to the box side of the breast beam, a shank slidable therein, a spiked temple roller revolubly carried and a temple head carried by the shank, a returning spring for the temple shank, and a heel fixed to the shank in position to engage the lay beam' on the up beat; of a selvage guard attached to the temple head proximate the selvage end of the temple roller; a temple head cutting member fixed to the temple head outside the selvage guard; a hook shaped temple stand cutting member connected to the temple stand and in cutting relation with the temple head cutting member;

a thread holding device having a mouth which is open towards the lay to, receive the thread and is formed by the ends of two jaws spring pressed together to hold the thread between the selvage and a dead shuttle inthe box, said thread holding device being also open at the back; and a claw member to carry the thread into the thread holding device.

3. In a shifting shuttle box loom having a breast beam and a lav beam; the combination with a temple stand fixed to the box side of the breast beam, a shank slidable therein, a

spiked temple roller re-volubly carried and a temple headcarried by the shank, a returning spring for the temple shank, and a heel ,fixed to the shank in position to engage the lay beam on the up beat; of a selvage guard attached t6 the temple head proximate the' selvage end of the temple roller; a temple- I head cutting member fixed to the temple head outside the selvage guard; a temple stand cutting member in cutting relation with the temple head cutting member; a thread holding device having a month which is open towards the lay to receive the thread and is formed by the ends of two jaws spring pressed together to hold the thread between I the s'elvage and a dead shuttle in the box, said thread holding device being also open at the back; and a claw member pivoted to the temple head outside the cutting members and connected to the temple stan 4. In a shifting shuttle box loom having a breast beam and a lay beam; the combination with a temple stand fixed to the box side of the breast beam, .a shank slidable therein, a spiked temple roller rovolubly carried and a temple head carried by the shank, a returning' spring for the temple shank, and a heel fixed to the shank in position to engage the lay beam on the up beat; of a selvage guard attached to the temple head proximate the sel'vage end of the temple roller; a temple head cutting member fixed to the temple head outside the selvage guard; a temple stand cuttingmember in cutting relation with the temple head cutting member; and a spring operable thread holding device to hold the thread between the selvage and a dead shuttle in the box.

5. Ina shifting shuttle box loom having a breast beam and a lay beam; the combination with a temple stand fixed to the box side of the breast beam, a shank slidable therein, a spiked temple roller revolubly carried and a temple head carried by the shank, a returning spring for the temple shank, and a heel fixed to the shank in position to engage the lay beam on the up beat; of a selvage guard attached to the temple head proximate the sel- Vage end of the temple roller; a temple head cutting member fixed to the temple head outside the selvage guard; a temple stand cutting member in cutting relation with the temple head cutting member; a thread holding device having a mouth which is open towards the lay to receive the thread and is formed by ing spring for the temple shank, and a heel fixed to the shank in position to engage the lay beam on the up beat; of a selvage guard attached to the temple head proximate the selvage end of the tem 1e roller; means out-' side and adjacent to t e-selvage guard for. severing each filling thread which projects from the 'selvage; a thread holding device having a mouth which is open towards the I lay to receive the thread and is formed by the ends of two jaws spring'pressed together to hold the thread between the selvage and a dead shuttle in the box, said thread holding "device being also open at the back. 7. In a shifting shuttle box loom having a breast beam and a lay beam; the combination with a temple stand fixed to the box side of the breast beam, a shank slidable therein; a spiked temple roller revolubly carried and a temple head carried by the shank, a returning spring for the temple shank, and a heel fixed to the shank in position to engage the lay beam on the up beat; of a selvage guard attached to the temple head proximate the selvage end of the temple roller; 'ieans outside and adjacent to the selvage guard for severing each filling thread which projects from the selvage; a thread holding device consisting of an upper and lower member with a mouth which is open towards the lay beam to receive the thread thence extending backward Where the two members are caused to engage each other a substantial distance by spring pressure to hold the thread between the selvage and a 3 dead shuttle in-the box.

- FRANCOIS COTE. 

